Hi John,
The two most common methods to increase compression is to shave the head or
to install pistons that take up more of the 'squish' area of the chamber.
Obviously, shaving the head is the least costly and, in the case of the TR6
as far as I know, there are no hi-compression pistons commercially
available. You can have them made but big dollars.
Either way it reduces the size of the compression chamber, or squish area.
Shaving the head is an old standby and does no harm to the motor as long as
it is done properly by an experienced machine shop. It is also a good idea
to have any sharp corners smoothed out in the chamber to discourage
pre-ignition.
Greg Dito
CD6250L
----- Original Message -----
From: "John & Allison Cyganowski" <janah@att.net>
To: "6pack" <6pack@autox.team.net>
Sent: Tuesday, May 31, 2005 6:24 AM
Subject: Increasing Compression Questions
> Hi All-
>
> It would appear from the discussion that the most common way to raise
> compression on the TR6 engine is to shave the head. Does this not in fact
> reduce the volume of the combustion chamber? Is this a good thing? Are
> pistons made with lower pivot / wrist pin points? Would this not increase
> sompression without reducing the volume of the the combustion chamber?
>
> Thanks,
> John Cyg.
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